Pencil-sharpener



(No Model.) 7

W. F GARRETT.

PENCIL SHARPENER.

No. 597,643. Patented Jan 18, 1 898.

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' UNITED STATES PATENT rrrcn.

W'ILBUR F. GARRETT, OF OENTREVILLE, IOXVA.

PENCIL-SHARPENER.

SPECIFICATION forming part of Letters Patent No. 597,643, dated January18, 1898. Application filed November 21, 1898. Serial No. 613,036. (Nomodel.)

To a-ZZ whom it may concern.-

Be it known that I, WILBUR F. GARRETT, a citizen of the United States,residing at Centreville, in the county of Appanoose and State of Iowa,have invented certain new and useful Improvements in Pencil-Sharpeners;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention. relates to pencil-Sharpeners, and has for its object toprovide a simple, neat, and efficient sharpener for pencils whichisadapted to be used in connection with any ordinary pencil andto remainat all times thereon, said sharpener serving, in addition to its usualfunction, as a protector for guarding the point of the pencil andpreventing the point thereof from becoming broken.

With these and other objects in view the invention consists in certainnovel features and details of construction, as hereinafter fullydescribed, illustrated in the drawings, and pointed out in the claim.

In the accompanying drawings, Figure 1 is a perspective view of theimproved pencilsharpener. Fig. 2 is a longitudinal section through thesame. Fig. 3 is a similar section showing the improved sharpenerengaging the point of a pencil as when sharpening'the same. Fig. 4 is asimilar view showing the sharpener moved upward for protecting the pointof the pencil.

Similar numerals designate corresponding parts in the several figures ofthe drawings.

The improved pencil-sharpener contemplated in this invention ispreferably formed in one piece from a single blank of sheet-steel orother suitable metal having the requisite 40.

degree of hardness, and this blank, which is in the form of a strip 1,is coiled spirally into the form of a volute spring, With'the exceptionthat the coils lie in the same plane, the device resembling a pointedcone with'a spiral groove extending from apex to base.

The several coils which compose the device are sharpened at their frontedges, so as to engage with the point of the pencil as the latter isturned therein or as the device is turned around the pencil for thepurpose of removing the wood and gradually shaving the pencil down to anicely-tapered point. The extremity of the blank at the pointed end ofthe sharpener is also beveled, as indicated at 2, to form a cutting-lip,which cooperates with the lead point of the pencil for trimming down andsharpening said point when the pencil is revolved in a reversedirection,thereby enabling the lead to be sharpened without trimmingdown the wood any further. The strip 1 at its rear end is provided uponopposite sides, one or both, with inwardly-extending feeding-spurs 3,inclined slightly to the axis of rotation, and when the sharpener andpencil are given a relative rotation these spurs indent the wood of thepencil and form threads therein, thereby operating to feed the sharpenerinwardly on the pencil simultaneously with the shaving down of the pointthereof.

The sharpener is intended to remain at all times on the pencil, and itmay be given a slight movement or a complete turn occasionally forkeeping the pencil properly sharpened. When the pencil is not in use,the sharpener may be turned reversely thereon, whereupon the spurs 3will travel in the threads which they have previously formed, thuscarrying the sharpener outward on the point of the pencil in such manneras to cover the pencil-point, thereby protecting the same and preventingbreakage thereof when the pencil is carried in the pocket.

Where the sharpener is made out of very thin material, the rear portionof the strip 1 may be provided with a longitudinally-projecting lip 4,which is riveted to the adjacent coil of the device, thus impartingstrength thereto. It is also advisable to provide said strip at its rearend with a laterally and upwardly projecting lip 5,,forming afinger-hold for giving the required purchase while rotating the deviceupon the pencil.

It will be seen that the device is extremely simple in construction,that it may be manufactured at very slight cost, and that in addition tosharpening a pencil it also serves as a pointprotector, and is also inthe nature of an ornamentation for the pencil.

Having thus described my invention, what is claimed as new is- Apencil-sharpener, comprising a strip of metal coiled in volute form andsharpened as tion of the strip extending forward and united to theadjacent coil, and one or more oblique 1o feeding-spurs projectinginward from the sharpener, substantially as and for the .purposedescribed.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

WILBUR F. GARRETT.

Witnesses:

CLARA THOMPSON, J. T. CONNOR.

